Suggest Remedy For Irregular Menstruation

I am 32 years of age trying to conceive with the past twelve months. I was on implanton for 2 years since I came off implanton my periods have been more of spotting than a period very light no need for towels or tampons. I am wondering is there anything I can do to increase the blood flow? Or would you have any other advise. I have been charting and using opks so it looks like i am ovulating.